Vending Machines
Today’s vending machines are typically stocked with unhealthy snack options, like candy bars, sodas, and chips. The first vending machines, however, dispensed a product that was good for your soul. These vending machines from the 1st century dispensed holy water. Hero of Alexandria, a Greek engineer, mathematician, and inventor built a box with a series of levers. When the user inserted a coin, it triggered the levers to open a valve and pour out a small amount of holy water.
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Valentina 10 month s ago
#40 Early SONAR maybe but not RADAR.
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Frederick 10 month s ago
Valentina,
When there is drama in the Café. My Wife goes like this.
When there is drama in the Café. My Wife goes like this.
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Derrick 10 month s ago
#21 man I don't know what kind of cars have you had since but practically all cars have that option for the past twenty years.
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Beedy 10 month s ago
Derrick,
twenty, not thirty-five.
twenty, not thirty-five.
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Dacey 10 month s ago
#12 Can anyone date this photograph?
Thanks in advance!
Thanks in advance!
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Beedy 10 month s ago
Dacey,
it's a handsome photograph, I'll give it that, but for now I'd rather date women, thanks.
it's a handsome photograph, I'll give it that, but for now I'd rather date women, thanks.
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Dotty 10 month s ago
#9 Tesla fanboys will believe anything. That idea of electricity through the air is dangerous and so busted. 
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Gerrie 10 month s ago
Quote: Dotty
Chatty Cathy
You're assuming that all frequencies of microwave radiation are dangerous. Tesla lived to a 86 years, despite his exposure to it. Cell phone towers use microwave frequencies.
When there is drama in the Café. My Wife goes like this.
twenty, not thirty-five.
Thanks in advance!
it's a handsome photograph, I'll give it that, but for now I'd rather date women, thanks.
You're assuming that all frequencies of microwave radiation are dangerous. Tesla lived to a 86 years, despite his exposure to it. Cell phone towers use microwave frequencies.